444978699 has 16 divisors (see below), whose sum is σ = 663030144. Its totient is φ = 263105600.

The previous prime is 444978683. The next prime is 444978707. The reversal of 444978699 is 996879444.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 444978699 - 2⁴ = 444978683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (444978659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163089 + ... + 165794.

It is an arithmetic number, because the mean of its divisors is an integer number (41439384).

Almost surely, 2^444978699 is an apocalyptic number.

444978699 is a deficient number, since it is larger than the sum of its proper divisors (218051445).

444978699 is a wasteful number, since it uses less digits than its factorization.

444978699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328938.

The product of its digits is 15676416, while the sum is 60.

The square root of 444978699 is about 21094.5182215665. The cubic root of 444978699 is about 763.4484903251.

The spelling of 444978699 in words is "four hundred forty-four million, nine hundred seventy-eight thousand, six hundred ninety-nine".